How many bluebird houses per acre to ensure optimal nesting? Find out the spacing and habitat tips for a thriving bluebird ...

The eastern bluebird is a species familiar to millions in eastern North America. Polytypic. Length 7" (17.5 cm). Male: bright blue above, with orange throat, ear surround, chest, sides ...

Neither male nor female mountain bluebirds have the chestnut breast coloration of the western bluebird. Compared to western and eastern bluebirds ... To attract a pair, place a nest box with ...